October 22, 2013 Team 1 Score Team 2 Score Jeopardy Category 1 - 100 What are the slope and yintercept of the line? Linear Functions Scatter Plots and Correlation Function Fun Statistics Potpourri 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 slope = -3 y-int = -2 Jeopardy Board Category 1 - 200 Category 1 - 300 What is the slope of 5x + 2y = -9? - 5/2 What is the equation of the line between the two points? y=8 Jeopardy Board Jeopardy Board Category 1 - 400 Category 1 - 500 Write the equation of the line Write the equation of the line y = -2x y = 2x - 3 Jeopardy Board Jeopardy Board October 22, 2013 Category 2 - 200 Category 2 - 100 Write the equation of the line of best fit. Describe the correlation Weak, negative, linear y = 3/2 x + 1 Jeopardy Board Jeopardy Board Category 2 - 300 Category 2 - 400 What is the equation of the line of best fit shown? y = 1/3 x + 40 Based on the line of best fit, predict the score for someone that worked for 5.5 hours. About 96 Jeopardy Board Jeopardy Board Category 3 - 100 Category 2 - 500 The scatter plot shows the relationship between outside temperature and the cost of hotel rooms in a city. Using the line of best fit, predict the temperature outside when a room costs $500. Linear or Non-Linear? Non-Linear 22 degrees Celsius Jeopardy Board Jeopardy Board October 22, 2013 Category 3 - 300 Category 3 - 200 The table shows a comparison between the hours a guy works, x, and the amount he is paid, y. If he works for 12 hours, how much will he get paid? Linear or Non-Linear? $48 Linear Jeopardy Board Jeopardy Board Category 3 - 400 Category 3 - 500 Function or Not a function? Function Is this a function? No! Jeopardy Board Jeopardy Board Category 4 - 200 Category 4 - 100 How many total were surveyed? What does a correlation coefficient very close to 1 tell you about bivariate data? very strong, positive correlation 10 Jeopardy Board Jeopardy Board October 22, 2013 Category 4 - 300 Category 4 - 400 True or False: Students that do not do chores are less likely to receive allowance than students that do chores? Daily Double: Fill in the blanks! True Jeopardy Board Jeopardy Board Category 4 - 500 Category 5 - 100 What percent of males volunteered at the hospital in this survey? (round to the nearest whole number if necessary) 27% Does this show inverse variation or direct variation? Inverse Variation Jeopardy Board Jeopardy Board Category 5 - 300 Category 5 - 200 What is the rate of change of this linear function? Are there outliers in this scatter plot? If so, what are they? - 2/3 No! Jeopardy Board Jeopardy Board October 22, 2013 Category 5 - 500 Category 5 - 400 Predict the temperature outside if 450 people were at the beach on a given day. The percentage of red-haired students with brown eyes 88 - 92 degrees Fahrenheit Jeopardy Board Final Jeopardy: Team 1 Score: Team 2 Score: Team 1 Wager: Team 2 Wager: Question: Which function has the greatest rate of change? y is three more than half of x 3x - 5y = -5 x -6 4 9 y -9 -5 -3 (0,-4) (-5,-5) Answer: 3x - 5y = -5 (5,-3) Jeopardy Board